Transmission Electron Microscopy Investigation of Krypton Bubbles in Polycrystalline CeO2

Journal Article · Wed May 01 00:00:00 EDT 2013 · Nuclear Technology

OSTI ID:1111057

He, Lingfeng; Yablinsky, Clarissa; Gupta, Mahima; Gan, Jian; Kirk, Marquis A.; Allen, Todd R.

To gain an understanding of gas bubble transport in oxide nuclear fuel, this paper uses polycrystalline CeO2, composed of both nanograins and micrograins, as a surrogate material for UO2. The CeO2 was implanted with 150-keV Kr ions up to a dose of 1 x 1016 ions/cm2 at 600 degrees C. Transmission electron microscopy characterizations of small Kr bubbles in nanograin and micrograin regions were compared. The grain boundary acted as an efficient defect sink, as evidenced by smaller bubbles and a lower bubble density in the nanograin region as compared to the micrograin region.

• Research Organization: Idaho National Lab. (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC07-05ID14517
• OSTI ID: 1111057
• Report Number(s): INL/JOU-13-30666
• Journal Information: Nuclear Technology, Vol. 182, Issue 2
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
krypton bubbles